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Noise Meters

A noise meter, also known as a "sound level meter", is designed to accurately measure the "noise" or unwanted component of a signal or variable.


Showing results: 136 - 144 of 144 items found.

  • PXI-6238, 8 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sourcing DO, Bank-Isolated, PXI Hybrid, Multifunction I/O

    779624-01 - NI

    8 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sourcing DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6238 is a bank-isolated DAQ device designed for current I/O. It offers analog I/O, digital input, sourcing digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 24 V signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6238 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6238 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.

  • PXI-6230, 8 AI (16-Bit, 250 kS/s), 4 AO, 6 DI, 4 DO, Bank-Isolated, PXI Hybrid, Multifunction I/O

    779616-01 - NI

    8 AI (16-Bit, 250 kS/s), 4 AO, 6 DI, 4 DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6230 is a bank-isolated DAQ device designed for voltage I/O. It offers analog I/O, digital input, digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 5 V TTL/CMOS signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6230 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6230 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.

  • PXI-6232, 16 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sourcing DO, Bank-Isolated, PXI Multifunction I/O Module

    779618-01 - NI

    16 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sourcing DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6232 is a bank-isolated DAQ device designed for voltage I/O. It offers analog I/O, digital input, sourcing digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 24 V signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6232 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6232 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.

  • PXI-6239, 8 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sinking DO, Bank-Isolated, PXI Multifunction I/O Module

    779626-01 - NI

    8 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sinking DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6239 is a bank-isolated DAQ device designed for current I/O. It offers analog I/O, digital input, sinking digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 24 V signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6239 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6239 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.

  • PXI-6236, 4 AI (16-Bit, 250 kS/s), 4 AO, 6 DI, 4 DO, Bank-Isolated, PXI Multifunction I/O Module

    779622-01 - NI

    4 AI (16-Bit, 250 kS/s), 4 AO, 6 DI, 4 DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6236 is a bank-isolated DAQ device designed for current I/O. It offers analog I/O, digital input, digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 5 V TTL/CMOS signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6236 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6236 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.

  • Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm

    OSA202C - Thorlabs, Inc.

    Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.

  • Fourier Transform Optical Spectrum Analyzer, 350 - 1100 nm

    OSA201C - Thorlabs, Inc.

    Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.

  • LED Power Driver ATS

    8491 - Chroma ATE Inc.

    1. DC Electronic Load : Chroma 6310A/6330A Series2. Transducer Unit/Module*1 : Chroma A849101/A849102, A849103, A8491043. Time/Noise Analyzer : Chroma 80611 & 80611N card4. Sytem Controller*2 : Industrial PC5. DC Source: Chroma 62000P Series6. Digital Power Meter : Chroma 66200 Series7. OVP/Short Circuit Tester : Chroma 806128. ON/OFF Controller : Chroma 80613*1 : A849101 transfers UUT output signal to voltage signal, and measure by 84911 LED power driver measurement card (200kHz). The optional 80611N Noise card is required for 20MHz ripplecurrent measurement.*2 : The controller includes both 84911 LED Power Driver measurement card and 84903 control card.- 84911: Measure rms current, dimming current/frequency/duty, timing, power & ripple current (200kHz)- 84903 : Provide BL control signal(DC level, PWM, SM bus), and enable ON/OFF signal.C Source : Chroma 6500/61500/61600 Series

  • ​Gas Filter Correlation Carbon Monoxide Analyzer​

    Model T300 - Teledyne Monitor Labs

    The Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing extreme sensitivity. All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information, is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300 comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software​.​​

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